23245905 has 16 divisors (see below), whose sum is σ = 37264320. Its totient is φ = 12374208.

The previous prime is 23245889. The next prime is 23245909. The reversal of 23245905 is 50954232.

It is not a de Polignac number, because 23245905 - 2⁴ = 23245889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23245909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9111 + ... + 11379.

It is an arithmetic number, because the mean of its divisors is an integer number (2329020).

Almost surely, 2^23245905 is an apocalyptic number.

It is an amenable number.

23245905 is a deficient number, since it is larger than the sum of its proper divisors (14018415).

23245905 is a wasteful number, since it uses less digits than its factorization.

23245905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2960.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 23245905 is about 4821.4007300783. The cubic root of 23245905 is about 285.3966161583.

The spelling of 23245905 in words is "twenty-three million, two hundred forty-five thousand, nine hundred five".